Canon Scanner 3000F and Canon Scangear software very slow on USB

Description

The scanner is very slow to initialise when the Scangear software is opened, and there is a long pause after request before scan preview and final scan actions are carried out. The usb icon in the Virtualbox task bar shows a lot of activity during the pauses.

Machine is configured for USB EHCI

Under VMware Player V2 same configurationthis USB activity is fast and trouble free.

USB may be an area needing major attention going by the comments I see.